jul-aug2012

66
AV QUIZ
Flying ops | Maintenance | IFR operations
FLYING OPS
1. Fog formation of significance to aviation becomes
more likely:
a) as the ambient temperature approaches the dew
point, particularly if there is a light surface wind to
promote mixing.
b) as the ambient temperature approaches the dew point,
particularly if there is no wind.
c) as the dew point depression decreases, particularly if
there is no wind.
d) as the dew point depression increases, particularly if
there is a light wind to promote mixing.
2. At the leading edge of a cold front, the atmosphere is:
a) unstable, because the temperature decreases rapidly
with increasing height.
b) unstable, because the temperature increases rapidly
with increasing height.
c) stable, because the temperature increases rapidly
with increasing height.
d) stable, because the temperature decreases rapidly
with increasing height.
3. In a continuous-flow fuel-injected piston engine, one
function of the fuel manifold valve assembly is to:
a) time the delivery of fuel to the appropriate cylinder
during engine operation.
b) provide a positive fuel shut-off to the fuel nozzles
during engine shutdown.
c) compensate for air density.
d) compensate for ambient air pressure and temperature.
4. With reference to helicopter operation, a vortex ring
state is:
a) a lenticular rotating air mass at the top of an obstacle in
the presence of a strong wind.
b) a rotating air mass in the lee of an obstacle in the
presence of a strong wind.
c) a stable state that occurs when a helicopter is
moving rapidly forward and the main rotor downwash
recirculates through the rotor.
d) a hazardous condition in helicopter flight usually
associated with a high rate of descent, a comparatively
low airspeed, a relatively high power setting and the
main rotor downwash recirculating through the rotor.
5. Autokinesis is:
a) an illusion where a point source of light in a dark
environment appears to move.
b) a sensation of pitching nose-down during acceleration.
c) a false sensation that an aircraft is banked.
d) a false turning sensation.
6. An anti-servo tailplane is one where:
a) a small trim tab is moved in order to move the
main tailplane.
b) there is one fixed surface and two moving aerofoil
surfaces.
c) a small trim tab moves to oppose the movement of
the main stabilator.
d) a small trim tab moves to assist the movement of
the main stabilator.